Vanguard Heating VP2600D Benutzerhandbuch

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FRESH AIR
FOR
COMBUSTION
AND
VENTILATION
Continued
Or 
Remove 
Door into 
Adjoining 
Room, 
Option 3
Ventilation Grills 
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room, 
Option 1
WARNING ICON
G 001
 WARNING
If the area in which the heater may be operated is smaller than
that defined as an unconfined space, provide adequate combus-
tion and ventilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an
adjoining unconfined space, you must provide two permanent openings: one within 12" of the
ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and
2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). Follow
the  National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and
Ventilation
 for required size of ventilation grills or ducts.
WARNING ICON
G 001
 WARNING
Rework worksheet, adding the space of the adjoining unconfined
space. The combined spaces must have enough fresh air to supply all
appliances in both spaces.
Figure 2 - Ventilation Air from Inside Building
Continued